981402 has 8 divisors (see below), whose sum is σ = 1962816. Its totient is φ = 327132.

The previous prime is 981397. The next prime is 981419. The reversal of 981402 is 204189.

It is a sphenic number, since it is the product of 3 distinct primes.

981402 is an admirable number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981402.

It is an unprimeable number.

981402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81778 + ... + 81789.

It is an arithmetic number, because the mean of its divisors is an integer number (245352).

2⁹⁸¹⁴⁰² is an apocalyptic number.

981402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

981402 is a wasteful number, since it uses less digits than its factorization.

981402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163572.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 981402 is about 990.6573575157. The cubic root of 981402 is about 99.3761832856.

The spelling of 981402 in words is "nine hundred eighty-one thousand, four hundred two".